Orbital fractures and head injury quiz

Question 1

Which is the most related to an orbital blow out fracture?

Answer 1

An orbital blow out fracture occurs due to increased pressure within the orbit, causing the weakest part of the orbit to fracture.

Question 2

Does the parietal bone make up the orbit

P

Answer 2

NO

Question 3

Which of these structures is not found in the orbit?

Answer 3

Cranial Nerve V – division III

Question 4

Which statement is most accurately describing a patients deviation following a L medial wall blow out fracture?

Answer 4

The patient is expected to have no deviation in primary position, a mod L ET on left gaze and a sl L XT on R gaze. The deviation is the similar at Nr and Dist, but is larger FLE compared to FRE.

Question 5

Does optic nerve drusen occur from trauma?

Answer 5

No

Question 6

What is not a typical feature of an orbital blow out fracture?

Answer 6

Orbital floor blow out fracture - causing a limitation of ADDuction of the affected eye

Question 7

A patient sustained a right orbital floor blow out fracture 1/52 ago and reports vertical diplopia. Which of these is the most appropriate management option

Answer 7

Fresnel prism to join the diplopia and a review in 1-2 weeks as you are expecting the diplopia may change as the swelling subsides. Close monitoring is required

Question 8

Which statement relates to the cribform plate?

Answer 8

Transmits the olfactory nerves and allows a sense of smell

Question 9

Does NPA measured objectively with RAF and subjectiveley with dynamic RET improve after a head injury?

Answer 9

NO

Question 10

Which of these statements is MOST correct relating to head injuries?

Answer 10

Coup and contrecoup injuries occur when there is a closed head injury - the coup injury occurs from the direct blow and the contrecoup injury occurs as a counter blow, opposite to the side of the impacted area.

Question 11

Is a comminuted fracture of the orbital floor in a 1 year old likely to happen following an orbital fracture?

Answer 11

No

Question 12

Which of these bones does NOT make up part of the orbital rim?

Answer 12

Cribriform plate

Question 13

Which of the following are NOT expected to occur following direct trauma to the orbital area?

Answer 13

Cyclic esotropia

Question 14

In an orbital floor blow out fracture, which of these most accurately describes the diplopia the patient is likely to experience?

Answer 14

No diplopia in primary position, but vertical diplopia on upgaze and downgaze that has reversed on downgaze compared to upgaze